condition	mean	min	max
0 h after light	19.799799999999998	19.4952	20.1044
4 h after light	15.680250000000001	14.0866	17.2739
8 h after light	16.63725	15.4998	17.7747
4 h after dark	18.6836	18.3333	19.0339
8 h after dark	18.84755	17.0042	20.6909
12 h after dark	17.75835	16.4931	19.0236